PD

Pd
  • 文章类型: Journal Article
    与健康对照组相比,肌萎缩侧索硬化症(ALS)患者中的香叶酰香叶酰转移酶亚基β(RABGGTB)表达水平更高。本研究旨在观察RABGGTB在ALS患者和不同疾病患者不同细胞中的表达。
    在本病例对照研究中,我们收集了ALS患者和健康对照者的外周血,并比较了自然杀伤细胞(NK)中RABGGTB的表达,通过流式细胞术检测ALS患者和健康对照之间的T细胞和B细胞。并比较RABGGTB在ALS患者单核细胞和单核细胞源性巨噬细胞中的表达,帕金森病(PD),急性脑血管病(ACVD),和健康对照通过流式细胞术和免疫荧光。然后用流式细胞术检测SOD1G93A小鼠和WT小鼠单核细胞中RABGGTB的表达。
    NK细胞中RABGGTB的表达无明显变化,细胞毒性T细胞(CTL),辅助性T细胞(Th),调节性T细胞(Treg),与健康对照相比,来自ALS患者的B细胞。ALS组单核细胞和单核细胞源性巨噬细胞中RABGGTB的表达高于PD,ACVD组和对照组。与WT小鼠相比,SOD1G93A小鼠的单核细胞中RABGGTB的表达明显更高。
    这些研究结果表明,ALS患者的单核细胞和单核细胞源性巨噬细胞中RABGGTB的表达增加,不是在NK,CTL,Th,Treg,B细胞。需要进一步的研究来发现RABGGTB在ALS中的临床意义。
    UNASSIGNED: Geranylgeranyltransferase Subunit Beta (RABGGTB) was expressed at higher levels in patients with Amyotrophic lateral sclerosis (ALS) compared with healthy controls. This study aims to observe the expression of RABGGTB in different cells from patients with ALS and different diseases.
    UNASSIGNED: In this case-control study, we collected peripheral blood from patients with ALS and healthy controls, and compared the expression of RABGGTB in natural killer cells (NK), T cells and B cells between patients with ALS and healthy controls by flow cytometry. And compared the expression of RABGGTB in monocytes and monocyte-derived macrophages from patients with ALS, Parkinson\'s disease (PD), acute cerebrovascular disease (ACVD), and healthy controls by flow cytometry and immunofluorescence. Then flow cytometry was used to detect the expression of RABGGTB in monocytes from SOD1G93A mice and WT mice.
    UNASSIGNED: The expression of RABGGTB was not significantly changed in NK cells, cytotoxic T cells (CTL), helper T cells (Th), regulatory T cells (Treg), and B cells from patients with ALS compared to healthy controls. And the expression of RABGGTB in monocytes and monocyte-derived macrophages was higher in the ALS group than in the PD, ACVD and control group. The expression of RABGGTB was significantly higher in monocytes of SOD1G93A mice compared to WT mice.
    UNASSIGNED: These findings suggest that RABGGTB expression was increased in monocytes and monocyte-derived macrophages from patients with ALS, not in NK, CTL, Th, Treg, and B cells. Future studies are needed to find the clinical implication of RABGGTB in ALS.
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  • 文章类型: Journal Article
    IL-23是由骨髓细胞产生的细胞因子,可驱动T辅助细胞17途径,并在斑块状牛皮癣的病理生理学中起重要作用。IL-23活化启动细胞因子的级联,随后诱导许多银屑病相关蛋白的表达。这项研究旨在更好地了解驱动银屑病患者IL-23和IL-17A阻断之间差异的潜在机制及其对临床反应持久性的影响。从用guselkumab或苏金单抗治疗的患者分离血清和/或皮肤活检,用于评估对治疗的药效学反应的潜在生物标志物。在第24周和第48周,Guselkumab治疗导致IL-17F和IL-22血清水平显着降低,这表明IL-23/T辅助因子17途径的持续调节。对患者血清和皮肤活检的蛋白质组学和转录组学谱的分析证明了参与趋化因子的蛋白质的差异调节,TNF,与苏金单抗治疗相比,guselkumab治疗的相关免疫信号通路的程度更高。这些数据提供了对银屑病中IL-23和IL-17A阻断的机制和影响之间的差异的见解,影响疗效观察和治疗范式。试验注册:原始研究在ClinicalTrials.gov(NCT03090100)注册。
    IL-23 is a cytokine produced by myeloid cells that drives the T helper 17 pathway and plays an essential role in the pathophysiology of plaque psoriasis. IL-23 activation initiates a cascade of cytokines subsequently inducing the expression of many psoriasis-related proteins. This study aimed to better understand the underlying mechanisms driving the differences between IL-23 and IL-17A blockade in patients with psoriasis and their implications for durability of clinical responses. Serum and/or skin biopsies were isolated from patients treated with guselkumab or secukinumab for evaluation of potential biomarkers of pharmacodynamic response to treatment. Guselkumab treatment led to significantly greater reductions of IL-17F and IL-22 serum levels than treatment with secukinumab at weeks 24 and 48, demonstrating sustained regulation of the IL-23/T helper 17 pathway. Analyses of proteomic and transcriptomic profiles of patient sera and skin biopsies demonstrated differential regulation of proteins involved in chemokine, TNF, and relevant immune signaling pathways to a greater degree with guselkumab than with secukinumab treatment. These data provide insights into the differences between the mechanisms and impact of IL-23 and IL-17A blockade in psoriasis, with implications for efficacy observations and treatment paradigms. Trial Registration: The original study was registered at ClinicalTrials.gov (NCT03090100).
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  • 文章类型: Journal Article
    通过选择性甘油氧化反应(GOR)将甘油电化学转化为高价值化学品在利用甘油的剩余平台化学成分方面具有重要意义。然而,它在生产三碳链(C3)化学品方面仍然非常有限,尤其是甘油酸/甘油酯,通过直接氧化其伯羟基。在这里,设计并制造了电沉积在Ni泡沫载体(Pd/NF)上的Pd微结构,以实现高效的GOR,表现出优异的电流密度。120mAcm-2在0.8V与可逆氢电极(RHE),和甘油酯的高选择性。70%。来自GOR的C3化学物质的法拉第效率仍然可以保持在约20次连续电解运行后的80%,电解10h后甘油转化率可达95%。还阐明,由相邻的Pd和Ni位点构成的双成分界面是这种高效GOR的原因。具体来说,Ni位点能有效增强活性吸附羟基(OHad)物种的生成能力,可以稳定地迁移到Pd位点,使表面吸附的甘油物质迅速被氧化成C3化学物质,而不是破坏甘油的C-C键;因此,既不形成C2/C1物种。这项研究可能会对甘油电催化转化为高价值的C3化学品产生新的观点,如甘油酸/甘油酯。
    The electrochemical conversion of glycerol into high-value chemicals through the selective glycerol oxidation reaction (GOR) holds importance in utilizing the surplus platform chemical component of glycerol. Nevertheless, it is still very limited in producing three-carbon chain (C3) chemicals, especially glyceric acid/glycerate, through the direct oxidation of its primary hydroxyl group. Herein, Pd microstructure electrodeposited on the Ni foam support (Pd/NF) is designed and fabricated to achieve a highly efficient GOR, exhibiting a superior current density of ca. 120 mA cm-2 at 0.8 V vs. reversible hydrogen electrode (RHE), and high selectivity of glycerate at ca. 70%. The Faradaic efficiency of C3 chemicals from GOR can still be maintained at ca. 80% after 20 continuous electrolysis runs, and the conversion rate of glycerol can reach 95% after 10-h electrolysis. It is also clarified that the dual-component interfaces constructed by the adjacent Pd and Ni sites are responsible for this highly efficient GOR. Specifically, Ni sites can effectively strengthen the generative capacity of the active adsorbed hydroxyl (OHad) species, which can steadily immigrate to the Pd sites, so that the surface adsorbed glycerol species are quickly oxidized into C3 chemicals, rather than breaking the C-C bond of glycerol; thus, neither form the C2/C1 species. This study may yield fresh perspectives on the electrocatalytic conversion of glycerol into high-value C3 chemicals, such as glyceric acid/glycerate.
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  • 文章类型: Journal Article
    神经营养因子,特别是脑源性神经营养因子(BDNF),作为神经元发育的关键调节者,生存,和可塑性。BDNF对于纹状体和黑质的神经元和功能维持是必需的,这两种结构都参与了帕金森病(PD)的发病机制。BDNF的耗尽导致纹状体变性和纹状体神经元的树突乔化缺陷。BDNF激活原肌球蛋白受体激酶B(TrkB)对于诱导长期增强(LTP)是必需的,突触可塑性的一种形式,在海马和纹状体.PD的特征是黑质纹状体神经元变性,纹状体可塑性改变与PD运动症状的病理生理学有关,导致基底神经节运动通路失衡。鉴于其在促进神经元存活和在运动系统中冥想突触可塑性方面的重要作用,BDNF可能对神经退行性疾病的病理生理有重要影响,比如PD。在这次审查中,我们关注BDNF在运动障碍的皮质纹状体可塑性中的作用,包括PD和肌张力障碍.我们讨论了多巴胺能输入如何在皮质纹状体突触中调节BDNF/TrkB信号传导的机制,以及这些机制在神经元功能和突触可塑性中的参与。对PD患者和动物模型中BDNF和TrkB改变的证据进行了综述。并强调了BDNF作为治疗剂的潜力。提高我们对这些机制的理解可以为旨在恢复这些疾病的神经可塑性和增强运动功能的创新治疗策略铺平道路。
    Neurotrophins, particularly brain-derived neurotrophic factor (BDNF), act as key regulators of neuronal development, survival, and plasticity. BDNF is necessary for neuronal and functional maintenance in the striatum and the substantia nigra, both structures involved in the pathogenesis of Parkinson\'s Disease (PD). Depletion of BDNF leads to striatal degeneration and defects in the dendritic arborization of striatal neurons. Activation of tropomyosin receptor kinase B (TrkB) by BDNF is necessary for the induction of long-term potentiation (LTP), a form of synaptic plasticity, in the hippocampus and striatum. PD is characterized by the degeneration of nigrostriatal neurons and altered striatal plasticity has been implicated in the pathophysiology of PD motor symptoms, leading to imbalances in the basal ganglia motor pathways. Given its essential role in promoting neuronal survival and meditating synaptic plasticity in the motor system, BDNF might have an important impact on the pathophysiology of neurodegenerative diseases, such as PD. In this review, we focus on the role of BDNF in corticostriatal plasticity in movement disorders, including PD and dystonia. We discuss the mechanisms of how dopaminergic input modulates BDNF/TrkB signaling at corticostriatal synapses and the involvement of these mechanisms in neuronal function and synaptic plasticity. Evidence for alterations of BDNF and TrkB in PD patients and animal models are reviewed, and the potential of BDNF to act as a therapeutic agent is highlighted. Advancing our understanding of these mechanisms could pave the way toward innovative therapeutic strategies aiming at restoring neuroplasticity and enhancing motor function in these diseases.
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  • 文章类型: Journal Article
    神经元细胞是高度特化的细胞并且具有特定的代谢谱以支持其功能。已经证明,随着年龄的增长,不同细胞/组织的代谢谱经历了显著的重编程。这通常被认为是导致衰老相关疾病的因素,包括阿尔茨海默病(AD)和帕金森病(PD)。然而,目前尚不清楚与正常衰老相关的代谢变化是否使神经元易患病或一组独特的代谢变化发生在AD或PD的神经元中,这可能导致疾病病理。为了破译神经元代谢随年龄的变化,在AD中,或者在PD,我们对野生型果蝇和与AD和PD相关的果蝇模型的头部进行了高通量稳态代谢物分析。有趣的是,我们发现受影响的代谢途径在正常衰老之间有很大的不同,Tau,或过表达突触核蛋白的神经元。嘌呤和谷氨酸代谢途径的遗传靶向,在老年和疾病中失调的部分挽救了与野生型和突变型tau过表达相关的神经退行性表型。我们的发现支持“两次命中模型”来解释与AD相关的病理表现,其中衰老和Tau/突触核蛋白驱动的代谢重编程事件相互配合,和靶向两者可能是一种有效的治疗策略。
    Neuronal cells are highly specialized cells and have a specific metabolic profile to support their function. It has been demonstrated that the metabolic profiles of different cells/tissues undergo significant reprogramming with advancing age, which has often been considered a contributing factor towards aging-related diseases including Alzheimer\'s (AD) and Parkinson\'s (PD) diseases. However, it is unclear if the metabolic changes associated with normal aging predispose neurons to disease conditions or a distinct set of metabolic alterations happen in neurons in AD or PD which might contribute to disease pathologies. To decipher the changes in neuronal metabolism with age, in AD, or in PD, we performed high-throughput steady-state metabolite profiling on heads in wildtype Drosophila and in Drosophila models relevant to AD and PD. Intriguingly, we found that the spectrum of affected metabolic pathways is dramatically different between normal aging, Tau, or Synuclein overexpressing neurons. Genetic targeting of the purine and glutamate metabolism pathways, which were dysregulated in both old age and disease conditions partially rescued the neurodegenerative phenotype associated with the overexpression of wildtype and mutant tau. Our findings support a \"two-hit model\" to explain the pathological manifestations associated with AD where both aging- and Tau/Synuclein- driven metabolic reprogramming events cooperate with each other, and targeting both could be a potent therapeutic strategy.
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  • 文章类型: Case Reports
    Smith-Magenis综合征(SMS)是一种罕见的遗传性疾病,以智力残疾(ID)为特征,行为障碍,和睡眠障碍,以及一些受影响个体的多器官异常。该综合征是由17p11.2周围的染色体带缺失引起的,包括维甲酸诱导1(RAI1)基因,一种多方面的转录调节因子,调节参与细胞增殖和神经发育的基因的表达。该基因在调节BDNF和,重要的是,影响几种细胞机制和途径,如黑质纹状体途径,这对运动功能至关重要。帕金森病(PD)是老年人群最常见的神经退行性疾病之一。它的特点是各种身体症状,包括震颤,失去平衡,运动迟缓,和弯腰的姿势。我们提供了一个诊断为SMS和早发性PD(49岁)的患者的案例研究。这两个条件之间的关联仍然是模糊的。全基因组关联研究(GWAS)暗示RAI1基因与PD之间存在关联。同样,SMS和PD在患者中同时存在提示RAI1拷贝数变异(CNVs)和PD之间可能存在关联,进一步表明RAI1对PD发病机制具有重要意义。我们的结果表明,RAI1CNVs与PD的病理生理学可能有关,强调需要在这一领域进一步研究。因此,SMS患者的护理人员应仔细注意患者发生EOPD的可能性,并应在出现最初症状后立即考虑开始治疗PD。
    Smith-Magenis Syndrome (SMS) is a rare genetic disorder, characterized by intellectual disability (ID), behavioral impairments, and sleep disturbances, as well as multiple organ anomalies in some affected individuals. The syndrome is caused by a deletion in the chromosome band around 17p11.2, including the Retinoic Acid Induced 1 (RAI1) gene, a multifaceted transcriptional regulator that modulates the expression of genes involved in cellular proliferation and neurodevelopment. This gene has a positive role in regulating BDNF and, importantly, affects several cell mechanisms and pathways such as the nigro-striatal pathway, which is crucial for motor function. Parkinson\'s disease (PD) is one of the most common neurodegenerative diseases in older populations. It is characterized by various physical symptoms including tremors, loss of balance, bradykinesia, and a stooping posture. We present a case study of a patient diagnosed with both SMS and early-onset PD (at the age of 49). The association between both conditions is as yet ambiguous. Genome-wide association studies (GWAS) implicate an association between the RAI1 gene and PD. Similarly, the co-existence of both SMS and PD in the patient suggests a possible association between RAI1 copy number variations (CNVs) and PD, further indicating that RAI1 has strong implications for PD pathogenesis. Our results suggest that RAI1 CNVs and the pathophysiology of PD may be related, underscoring the need for further research in this field. Therefore, caregivers of SMS patients should pay careful attention to the possibility of their patients developing EOPD and should consider starting treatment for PD as soon as the first symptoms appear.
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  • 文章类型: Journal Article
    虚拟护理预约在COVID-19期间迅速扩展,这是出于必要,并使许多患者能够获得和连续性的护理。虽然以前的工作已经探索了医疗保健提供者在小规模项目中使用远程医疗的经验,大流行期间广泛采用虚拟医疗为更好地理解如何加强远程医疗作为常规医疗服务提供模式的机会。对医疗保健提供者进行有效使用虚拟护理技术的培训和教育是有助于促进改善采用和使用的因素。我们描述了使用电子学习技术设计和开发认可的持续专业发展(CPD)计划的方法,以使用虚拟护理技术在医疗保健提供者中培养更好的知识和舒适度。首先,我们讨论了我们使用提供者的调查问卷进行系统需求评估研究的方法,关键线人采访,和一个病人焦点小组。接下来,我们描述了我们在与卫生系统中的主要利益相关者团体协商以及安排委员会告知计划设计和满足认证要求方面的步骤。然后深入描述电子学习模块的教学设计特点和方面,我们评估该计划的计划也得到了分享。作为CPD模式,电子学习提供了机会,可以为可能分散在农村和偏远社区的医疗保健提供者提供及时的继续专业教育。
    UNASSIGNED: Virtual care appointments expanded rapidly during COVID-19 out of necessity and to enable access and continuity of care for many patients. While previous work has explored health care providers\' experiences with telehealth usage on small-scale projects, the broad-level adoption of virtual care during the pandemic has expounded opportunities for a better understanding of how to enhance the integration of telehealth as a regular mode of health care services delivery. Training and education for health care providers on the effective use of virtual care technologies are factors that can help facilitate improved adoption and use. We describe our approach to designing and developing an accredited continuing professional development (CPD) program using e-learning technologies to foster better knowledge and comfort among health care providers with the use of virtual care technologies. First, we discuss our approach to undertaking a systematic needs assessment study using a survey questionnaire of providers, key informant interviews, and a patient focus group. Next, we describe our steps in consulting with key stakeholder groups in the health system and arranging committees to inform the design of the program and address accreditation requirements. The instructional design features and aspects of the e-learning module are then described in depth, and our plan for evaluating the program is shared as well. As a CPD modality, e-learning offers the opportunity to enhance access to timely continuing professional education for health care providers who may be geographically dispersed across rural and remote communities.
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  • 文章类型: Journal Article
    背景:患者静脉动脉体外膜氧合(VA-ECMO)的肾脏替代疗法(RRT)的最佳方式仍不清楚。这项研究旨在比较VA-ECMO患者的连续性肾脏替代治疗(CRRT)和腹膜透析(PD)的结果。
    方法:此单中心回顾性研究包括发生AKI并随后需要CRRT或PD的VA-ECMO患者。患者人口统计数据,合并症,临床特征,RRT模态,并收集结果。主要结果是住院死亡率,次要结果包括住院时间,RRT持续时间,以及与RRT相关的并发症。
    结果:共纳入43例患者(72.1%为男性,平均年龄58.2±15.7岁)。其中,在ECMO治疗期间,21人接受CRRT,22人接受PD。CRRT组和PD组之间的住院死亡率没有显着差异(80.9%vs90.9%,p=0.35)。然而,PD与导管相关并发症发生率较高相关,包括错位(31.8%对4.7%,p=0.046),感染(22.7%vs4.7%,p=0.19),和出血(18.2%vs9.5%,p=0.66),分别。
    结论:在接受VA-ECMO支持的RRT的患者中,我们的研究显示,CRRT和PD的住院死亡率相当,尽管PD与导管相关并发症的发生率较高相关。
    BACKGROUND: The optimal modality for renal replacement therapy (RRT) in patients venoarterial extracorporeal membrane oxygenation (VA-ECMO) remains unclear. This study aimed to compare outcomes between continuous renal replacement therapy (CRRT) and peritoneal dialysis (PD) in VA-ECMO patients.
    METHODS: This single-center retrospective study included VA-ECMO patients who developed AKI and subsequently required CRRT or PD. Data on patient demographics, comorbidities, clinical characteristics, RRT modality, and outcomes were collected. The primary outcome was in-hospital mortality, with secondary outcomes including length of stays, RRT durations, and complications associated with RRT.
    RESULTS: A total of 43 patients were included (72.1% male, mean age 58.2 ± 15.7 years). Of these, 21 received CRRT and 22 received PD during ECMO therapy. In-hospital mortality rates did not significantly differ between CRRT and PD groups (80.9% vs 90.9%, p = 0.35). However, PD was associated with a higher incidence of catheter-related complications, including malposition (31.8% vs 4.7%, p = 0.046), infection (22.7% vs 4.7%, p = 0.19), and bleeding (18.2% vs 9.5%, p = 0.66), respectively.
    CONCLUSIONS: Among patients receiving VA-ECMO-supported RRT, our study revealed comparable in-hospital mortality rates between CRRT and PD, although PD was associated with a higher incidence of catheter-related complications.
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  • 文章类型: Journal Article
    帕金森病(PD),这是第二常见的神经退行性疾病,其特征是黑质中的进行性运动障碍和中脑多巴胺能神经元的丢失。尽管TMEM230的突变与家族性PD有关,TMEM230相关PD的致病机制仍有待阐明.探讨TMEM230耗竭在体内的作用,我们使用CRISPR-Cas9技术创建了TMEM230基因敲除大鼠。TMEM230敲除大鼠没有表现出任何PD的核心特征,包括运动功能受损,黑质中多巴胺能神经元的丢失,或与自噬相关的蛋白质表达改变,Rab家族,或水泡贩运。此外,在TMEM230敲除大鼠中未观察到神经胶质反应。这些结果表明,TMEM230的消耗可能不会导致大鼠多巴胺能神经元变性,进一步支持PD相关的TMEM230突变通过毒性获得功能导致多巴胺能神经元死亡。
    Parkinson\'s disease (PD), which is the second most common neurodegenerative disorder, is characterized by progressive movement impairment and loss of midbrain dopaminergic neurons in the substantia nigra. Although mutations in TMEM230 are linked to familial PD, the pathogenic mechanism underlying TMEM230-associated PD remains to be elucidated. To explore the effect of TMEM230 depletion in vivo, we created TMEM230 knockout rats using CRISPR-Cas9 technology. TMEM230 knockout rats did not exhibit any core features of PD, including impaired motor function, loss of dopaminergic neurons in the substantia nigra, or altered expression of proteins related to autophagy, the Rab family, or vesicular trafficking. In addition, no glial reactions were observed in TMEM230 knockout rats. These results indicate that depletion of TMEM230 may not lead to dopaminergic neuron degeneration in rats, further supporting that PD-associated TMEM230 mutations lead to dopaminergic neuron death by gain-of-toxic function.
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  • 文章类型: Journal Article
    硝基苯还原为苯胺对于污染控制和化学合成都非常重要。然而,在开发用于生产苯胺的具有高效率和选择性的催化体系方面仍然存在困难。在这里,发现高度分散在TiO2载体上的PdO纳米颗粒(PdO/TiO2)在NaBH4存在下作为还原硝基苯的高效催化剂。在有利条件下,通过使用0.5%PdO/TiO2作为催化剂和2mmol/LNaBH4作为还原剂,在1分钟内减少了95%的硝基苯(1mmol/L),具有10.8kJ/mol的超低表观活化能,苯胺的选择性甚至达到98%。通过同位素标记实验和ESR光谱的结果,在硝基苯的氢化过程中,活性氢物种被认为是优势物种。提出了如下机理:PdO激活硝基并导致原位生成Pd,并且所产生的Pd充当还原位点以产生活性氢物种。在这个催化体系中,硝基苯优选吸附在PdO/TiO2复合材料的PdO纳米颗粒上。随后,NaBH4的添加导致从PdO/TiO2复合材料原位生成Pd/PdO/TiO2复合材料,并且Pd纳米团簇将激活NaBH4以产生活性氢物种来攻击吸附的硝基。这项工作将为绿色化学中硝基苯催化转移加氢制苯胺开辟一条新的途径。
    The reduction of nitrobenzene to aniline is very important for both pollution control and chemical synthesis. Nevertheless, difficulties still remain in developing a catalytic system having high efficiency and selectivity for the production of aniline. Herein, it was found that PdO nanoparticles highly dispersed on TiO2 support (PdO/TiO2) functioned as a highly efficient catalyst for the reduction of nitrobenzene in the presence of NaBH4. Under favorable conditions, 95% of the added nitrobenzene (1 mmol/L) was reduced within 1 min with an ultra-low apparent activation energy of 10.8 kJ/mol by using 0.5%PdO/TiO2 as catalysts and 2 mmol/L of NaBH4 as reductants, and the selectivity to aniline even reached up to 98%. The active hydrogen species were perceived as dominant species during the hydrogenation of nitrobenzene by the results of isotope labeling experiments and ESR spectroscopic. A mechanism was proposed as follows: PdO activates the nitro groups and leads to in-situ generation of Pd, and the generated Pd acts as the reduction sites to produce active hydrogen species. In this catalytic system, nitrobenzene prefers to be adsorbed on the PdO nanoparticles of the PdO/TiO2 composite. Subsequently, the addition of NaBH4 results in in-situ generation of a Pd/PdO/TiO2 composite from the PdO/TiO2 composite, and the Pd nanoclusters would activate NaBH4 to generate active hydrogen species to attack the adsorbed nitro groups. This work will open up a new approach for the catalytic transfer hydrogenation of nitrobenzene to aniline in green chemistry.
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